These models used to be in an RA3 mod I'm working on, but their units have been dropped by the faction, so now they're free for all. If anyone wants to use them, just PM me. Do note that these are some of my older, high-polied models though. Especially the Crustacean and Mantodea.
Intense model ya have here bud, what is your modeling program of choice? I myself use 3DS MAX.